Urgent please... 10 pts for clear answer....

Question

calculate the amount of DPPH that should be dissolved in methanol.... The DPPH solution is prepared at the concentration of 3*10 power -5 mol/L. mol.wt of DPPH- 394

Answer 1

3e-5 moles @ 394.32 grams / mole = 0.01183 grams

you need 0.0118 grams per Litre of solution